Portable watchman&#39;s clock.



0. E. HAUSBURG.

PORTABLE WATGHMANS CLOCK.

APPLICATION FILED MAR. 31, 1913.

Patented July 7, 1914.

2 SHEETSSHEBT 1 UW INVENTOR shur :22 m

' ATTORNEYS WITINESSES 7 CZaVTon,

O. E. HAUSBURG. PORTABLE WATGHMAN'S CLOCK. APPLICATION FILED MAR. 31,1913.

Patented July 7, 1914.

2 SHEETSSHEBT 2.

INVENTOR WITNESSZz//f UFEuEJ-Eusbur BY J ATTORNEYS OTTO E. HAUSBURG, OFNEW YORK, N. Y.

PORTABLE WATCHMANS CLOCK.

Specification of Letters Patent.

Patented July '7, 1914.

Application filed March 31, 1913. Serial No. 757,838.

To all whom it may roncern Be it known that I, O'r'ro E. HAUsnUno, asubject of the Emperor of Germany, residing at New York, in the countyof'New York and State of New York, have invented certain new and usefulImprovements in Portable "Vatchmens Clocks; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to characters of reference marked thereon, which form a part of thisspecification.

The present invention has reference, generally, to improvements inportable watchmens clocks used to control and report the movement ofwatchmen; and the invention relates, moreparticularly, to the meansconnected with the clock mechanism for operating the report dials placedin said clocks.

In the manufacture of watch-mens clocks as heretofore practiced, it hasbeen the custom to make such clocks in two types, viz: those whichoperate a twelve hour report dial, and those which opcrat-ea twenty-fourhour report dial. In the clocks of the former type, the report dialcarrying device was connected directly to the arbor of the springbarrelwhich furnished power to the clock mechanism, this spring-barrel beingadapted to .make one complete revolution every twelve hours. In theclocks of the latter, or twenty-four hour type, the report dial carryingdevice was also connected directly to the arbor of the spring-barrel,but in order to reduce the revolution of the springbarrel to onerevolution every twenty-four hours instead of every twelve hours, whichwas neces ary to effect the proper movement of the report dial, itrequired the addition in the clock movement of an extra wheel and pinionto gear down or slow the spring-ban rel with reference to the escapementof the clock movement. The addition of this extra Wheel and pinion inthe clock-movement rendered necessary a much stronger main-- spring inthe spring-barrel, with consequent evils attendant thereon.

The present invention has for its principal object to provide inconnection with the ordinary clock-movement of watchmens clocks aninterchangeable means for operating either a twelve hour report dial ora twentyfour hour report dial, without the necessity -movement t betouched.

of changing the ordinary construction of said clock-movement, or inother words, obviating the use of an extra wheel and pinion, and heavymain spring in the clock-movement, thereby rendering the clock easilyand quickly adapted for use by a day watchman and night watchman, whosemovements are reported on a single report dial, or if desiredby separatereport dials, the change of report-dials and the means for operating thesame being easily and quickly made without in any way requiring theclock- Therefore in the novel watchmans clock embodying my invention thetrain of the clock movement consists of a spring-barrel, 2nd, 3rd, 4thwheel and pinion, and then the escapement, whether the same operates atwelve or a twenty-four hour report dial, and the opera tion of thetwenty-four hour report dial, does not require a clock-movement trainconsisting of a heavy spring-barrel, 2nd, 3rd, 4th and extra or 5thwheel and pinion, and then the escapcment as has heretofore beennecessary.

Other objects of the present invention, not

' at this time more particularly enumerated,

will be clearly understood from the following detailed description of mypresent invention.

\Vith the various objects of the present invention in view, the sameconsists, primarily, in the novel report dial operating mechanism forwatchmens clocks hereinafter set forth; and, furthermore, this inventionconsists in the several novel a rrangements and combinations of thevarious devices and parts, as well as in the details of the constructionof the same, all of which will be hereinafter more fully described inthe following specification and then finally embodied in the clauses ofthe claim which are appended to and which form an essential part of thisspecification.

The invention is clearly illustrated in the accompanying drawings, inwhich Figure 1 is a front or face view of the novel construction ofwatchmans clock made according to the principles of my presentinvention, the lid of the case being open, and a twenty-four hour reportdial being operatively connected with the clock. Fig. 2 is a face viewof the clock-movement removed from the case, and the report-dial alsoremoved. to illustrate the carrier-disk and guard-ring which liesbeneath said re- I port-dial.

port-dial; and Fig. 3 is a similar face view with said guard-ringremoved to illustrate a part of the means for driving said carrierdiskwhen a 24 hour report-dial is connected' therewith. Fig. 4 is a partsection and part side elevation of said clock-movement and the meansconnected therewith for driving or operatin said 24 hour re- Fig. 5 is adetail vertical cross section of said 24 hour report-dial driving means,the same being drawn on an enlarged scale. Fig. 6 isa'detail bottom viewof the driving gear of said carrier-disk, illustrating particularly themeans for securing said carrier-disk thereto in driven relation, butnevertheless permitting an in dependent rotation of said carrier-diskfor setting the report-dial at the proper hour when the clock isdelivered to the watch man. Figs. 7 and 8 are, respectively, similar toFigs. 3 and 4, but illustrating the operative connection with theclock-movement of means for operating and carrying in the clock a 12hour report-dial; said views showing the interchangeability of theclockwith reference to the use therein of either 24 or 12 hourreport-dial.

Similar characters of reference are employed in all of the abovedescribed views to indicate corresponding parts.

Referring now to the said drawings, the reference character 1 indicatesa case in which the clock mechanism is contained, said case having a lid2 and a suspending ring 3, and being further provided with a lock 4adapted to be engaged by the catch 5 connected with said lid 2.

The reference character 6 indicates the frame in which theclock-movement and report-dial transmission is mounted, saidframe beingprovided with a top-plate 7 and a bottom-plate 8. Journaled in saidtopplate and said bottom-plate is the arbor or spindle 9 of amain-spring barrel 10 which provides the motive power to theclockmovemcnt and reportdial transmission. Said spring-barrel 10 isprovided with gearteoth 11 which transmits thespring power to the gearand pinion train of said clock 'movement and to the 24 hour report-dialtransmission devices. The said spring-barrel makes one completerevolution in twelve hours, or two such revolutions in twenty-fourhours, therefore, when it is desired to use a 24 hour report-dial whichmakes one revo lution every twentyfour hours, thecarrier- 'disk cannotbe connected directly to the arbor or spindle 9, as can be done when a12 hour report-dial isused, hence the following 24 hour reportdialtransmission mechanism is provided so that the carrierdisk is revolvedonce upon the completion of two revolutions of said spring-barrel 10.This mechanism comprises a carrier-disk 12, the hub 13 of which isloosely journaled views upon the upper end of said arbor or spindle 9,so as to turn freely thereon and independently thereof. The lower end 14of said hub 13 of said carrier-disk12, which projects beneath the underside of said our rier-disk, is provided with an annular groove orchannel 15. Secured upon this lower end of said hub 13 is a driving-gear16, the under side of which is chambered as at 17. A U-shaped springfriction key 18 is provided, the legs of the same entering said grooveor channel 15 of' said lower end of the hub 13, and the body of saidfriction key bearing against the under surface of said driving-gear 16,thus securely, by its frictional binding engagement with both saidgroove or channel 15 and the body of the driving-gear 16, uniting saiddrivinggear 16 with said carrier-disk 12, so that when the former isrotated thelatter will be driven thereby to rotate therewith, and yetsuch connection permits the independent turning or rotation of saidcarrier-disk 12, when the frictional engagement is overcome, for thepurpose of adjusting a reportdial carried by said carrier-disk 12 to itsproper starting position when inserted in the clock. Fixed in saidcarrier-disk 12, in

proper positions, are a pair of connectingpms 19, which project upwardlfrom the upper surface of said carrier-dis 12. Said connecting-pins areadapted to pierce a 24 hour report-dial 20, and thus connect the sameimmovably with relation to said carrier-disk so that it will be rotatedby the movement of the latter. Said report-dial 20 is removably retainedin such operative connection with said carrier-disk 12 by means of thewasher 21, said washer 21 being provided on .its under side withreceiving-sockets 22 for the reception of said connecting-pins 19. Saidwasher 21 is further provided with a knurled finger-piece 23 wherebywhen said washer is turned the movement is transmitted through saidconnecting-pins 19 to said carrier-disk 12 so that its independentreport-dial adjusting or setting movement, above referred to, may beattained.

The reference character 24 indicates a guard-ring which is provided witha centrally disposed opening 25 through which the said carrier-disk ispresented for the reception of said report-dial 20. The underside ofsaid guard-ring 24 is chambered, as at 26, to provide a space in whichsaid driving-gear 16 is located. Said top-plate 7 is provided with ahatch 27, and said guard-ring 24 is also provided with a hatch 28registering above said hatch 27. Through these hatches 27 and 28 the keyoperated stylus-points 29 gain access to the report-dial 20 forregistering thereon the watchmans record of movement or patrol,

all in the usual and well known manner.

Secured upon said top-plate 7 is a block 30 the pointer-arm 31 of whichprojects over: the upper surface of said report-dial 20, and serves as adial setting register, and also as a looking for holdin the dial duringthe registering or mar ing operation of said stylus-points 29. Securedto the said bottom-plate 8 is a bearing bracket 32 in which is journaledthelower end of a spindle 33, the upper end of said spindle 33 isjournaled in a bearing perforation 34 provided in said guard-ring 24.Secured .to said spindle 33 is a gear-wheel 35 which meshes operativelywith the teeth 11 of said spring-barrel 10. Also secured to said spindle33 is a pinion 36, which projects through an opening 37 in saidtop-plate 8- so as to be positioned to mesh with the teeth of saiddriving-gear 16. The said gear-wheel 35 and pinion 36 provide areduction transmission gearing whereby the rotation of saidspring-barrel 10 is transmitted to said drivmg-gear 16, and consequentlysaid carrier-disk 12 and the report-dial 20 carried thereby, so that thelatter parts will make but one revolution to two of said spring-barrel10, that is to say, that said report-dial will be rotated completelyonce every twenty-four hours.-

Of course, it will be understood that the number of teeth of therespectivegears and pinions may be varied while still retaining theproper reduction ratio, I have found, however, the following specificrelation of gear-teeth to be well adapted to provide the result sought;viz., 90 teeth on the springbarrel 10, which is the usual provision foroperating the ordinary clock-movement, the gear-wheel 35 is thenprovided with 30 teeth, hence the spindle 33 turns three times to oneturn of the spring-barrel 10, and consequently the pinion 36 turns threetimes also, said pinion 36 is then provided with 15 teeth and mesheswith the driving-gear 16 which is provided with 90 teeth. Since thespring-barrel 10 rotates twice in 24 hours, the spindle and pinion 36will rotate six times in every 24 hours, and since the pinion 36 has 15teeth and meshes with the driving-gear 16 having 90 teeth, it followsthat the six revolutions of said pinion 36 will produce one revolutionof said drivinggear 16 and consequently of the 24 hourreport dial andits carrying means. This operation is attained by the use of theordinary clock-movement and spring-barrel, and obviates the necessity ofinserting in the clock-movement itself an additional reduction wheel andpinion which would then render the clock-movement and spring-barrelinoperative" for'use with a 12 hour-report-dial.

As illustrated in Figs. 7 and 8 of the drawings should it be desired touse in the clock a 12 hour-report-dial, I remove the carrier-disk 12 andits driving-gear 16, and

place upon the upper end 14 ofsaid arbor or spindle 9,. a carrier-disk38 which is adapted to frictionally' engage said upper end 14 of saidarbor or spindle 9, so as to be driven directly thereby. The 12 hourreport-dial 39 is now connected with said carrier-disk 38 and securedthereto by the connecting-pins 40 and the washer 41. Now

said carrier-disk 38 isrotated by said spring-barrel 10 and its arbor orspindle 9 directly once in every twelve hours, and said spindle 33 withits gear-wheel 35 and pinion 36 merely run idly. It will thus beapparent that my novel construction of watchmans clock is easily andquickly interchangeable for 24 or 12 hour report-dials withoutdisturbing the clock-movement or spring-barrel, and that this result isattained by reason of the novel combination with the spring-barrel ofthe novel transmission means for 24 hour report-dials above described.

I am aware that some changes may be made in the various arrangements andcombinations of the several devices and parts and in the features ofmypresent invention without departing from the. scope thereof as describedin the foregoing specification, and as defined in the claims appendedhereto. Hence, I do not limit my invention to the exact arrangements andcombinations of the various devices and arts as herein set forth, and asillustrated in the accompanying drawings, nor do. I confine myself totheexact details of the construction of the said parts.

I claim 1. In a watchmans clock, a driving spring-barrel provided withan arbor, a detachable carrier-disk adapted to be directly connectedupon said arbor of said springbarrel for rotating a twelve hour reportdial, a detachable carrier-disk provided with a driving-gear adapted tobe rotatably mounted upon said. arbor of said spring-barrel, and areduction transmission gearing interconnecting said driving-gear of thelatter carrier-disk with said spring-barrel for rotating a twenty-fourhour report-dial, said respective carrier-disks being adapted to beinterchangeably connected with the arbor of said spring-barrel,substantially as and for the purposes set forth.

2. In a watchmans clock, a driving spring-barrel, an arbor rotated bythe same, gear teeth around the circumference of said springbarrel, adetachable carrier-disk adapted to be directly connected upon saidduction transmission gearing interconnecting said driving-gear of saidsecond carrierdisk with said gear-teeth of said springbarrel, atwenty-four hour report-dial, and means for connecting said twenty-fourhour report dial with said second carrier-disk, said respectivecarrier-disks being adapted to'be interchangeably connected with saidarbor, substantially as and for the purposes set forth.

3. In a watchmans clock, a driving spring-barrel adapted to rotate onceevery twelve hours, an arbor rotated bysaid spring-barrel, gear teetharound the circumference of said spring-barrel, a carrier-disk adaptedto carry a twelve hour report dial, the same being detachably connecteddirectly upon said arbor so as to rotate once every twelve hours, asecond carrier-disk adapted to carry a twenty-four hour report dial, thesame having a driving gear and being detachably mounted on said arbor torotate thereon, and reduction gearing interconnecting said driving gearof said second carrierdisk with said gear-teeth of said spring: barrelso as to rotate the former once every twenty-four hours, said respectivecarrierdisks being adapted to be interchangeably connected with saidarbor, substantially as and for the purposes set forth.

4C. In a watchmans clock, a driving spring-barrel adapted'to rotate onceeveryv twelve hours, an arbor rotated by said spring-barrel, gear teetharound the circumference of said spring-barrel, a carrier-disk adaptedto carry a twelve hour report dial, the same being detachably connecteddirectly upon said arbor so as to rotate once every twelve hours, asecond carrier-disk adapted to carry a twenty-four hour report dial, theS2116 having a driving gear and being detachably mounted on said arborto rotate thereon, and reduction gearing interconnecting said drivinggear of said second carrierdisk' with said gear-teeth of saidspringbarrel so as to rotate the former once every twenty-four hours,said reduction gearing comprising a rotatable spindle, a gear-wheelfixed on said spindle and adapted to mesh with said gear-teeth of saidspring-barrel, and a pinion fixed on said spindle and .adapted to meshwith said driving-gear of said second carrier-disk, said respectivecarrier-disks being adapted to be interchangeably connected with saidarbor, substantially as and-for the purposes set forth;

5. In a watchmans clock, a driving spring-barrel, an arbor rotated bythe same, gear teeth around the circumference of said springbarrel, adetachable carrierdisk adapted to be directly connected upon said arbor,a twelve-hour report dial, means for connecting said twelve-hour reportdial on said carrier-disk so as to be rotated thereby, a seconddetachable carrier-disk having a driving gear connected therewithadapted to be rotatably mounted on said arbor, a reduction transmissiongearing interconnecting said driving-gear of said second carrierdiskwith said gear-teeth of said springbarrel, said reduction gearingcomprising a rotatable spindle, a gear-wheel fixed upon said spindle andadapted to mesh with said gear-teeth of said spring-barrel, a pinionfixed upon said spindle and adapted to mesh with said driving-gear ofsaid second carrier-disk, a twenty-four hour report dial,

and means for connecting said twenty-four hour report dial with saidsecond carrierdisk, said respective carrier-disks being adapted to beinterchangeably connected with said arbor, substantially as and for thepurposes set forth.

In testimony that I claim the invention set forth above I have hereuntoset my hand this 26th day of March, 1913.

OTTO E. HAUSBURG.

Witnesses:

FREDK. C. FRAENrzEL, FREDK. H. W. FRAENTZEL.

